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Skar Audio

Skar Audio Dual 8" 1400W Loaded SDR Series Vented Subwoofer Enclosure | SDR-2X8D4

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Size: Dual 8" D4 Loaded Enclosure


Features

  • SDR Series 8-Inch Dual 4-ohm Loaded Vented Subwoofer Enclosure
  • Peak Power: 1,400 Watts | RMS Power: 700 Watts
  • Pre-wired Internally for a 1 Ohm Final Impedance Load at the Terminals for an Easy Installation
  • Premium Vented Enclosure Made of 5/8" MDF and Finished in Black Carpeting
  • Double Font Baffle (1.25") with Countersunk Subwoofer Design for Flush and Attractive Appearance
  • Compact in Size with Superior Bass Output | Frequency Response: 30 Hz - 350 Hz

Description

Skar Audio introduces the SDR-2X8D4 Dual 8-inch loaded Vented subwoofer enclosure to cater to the audiophile who wants a competition grade system in their Vehicle without all of the headache involved with designing it from the ground up. This loaded enclosure features two of our extremely popular SDR-8 D4 700 Watt Max power subwoofers which combined come in at 1, 400 watts Max power for the pair. The custom designed enclosure paired with these subwoofers features a unique kerf middle port and split chamber woofer design, allowing for extreme levels of bass output. Furthermore, the enclosure is finished in premium black carpet for a sleek appearance and features the Skar Audio logo in white on the top surface of the box. This enclosure was engineered by Skar Audio specifically for the subwoofers that are loaded in it, ensuring perfect sound and compatibility. The subwoofers comes pre-wired and loaded inside of the enclosure allowing for an easy and hassle free installation. The dual 4-ohm drivers are wired up inside of the enclosure so that the final Impedance Load is configured for 1-ohm at the box terminals. Peak power: 1, 400 watts, RMS power: 700 Watts. Enclosure Dimensions: Width: 25.75" X Depth 1: 16.25" (Bottom depth) x Depth 2: 14.25" (Top depth) x Height: 12.00"., Skar Audio SDR-2X8D4 Dual 8" Vented Loaded Subwoofer Enclosure, Easy to use

Brand: Skar Audio


Speaker Maximum Output Power: 1400 Watts


Frequency Response: 350 Hz


Connectivity Technology: Wired


Audio Output Mode: Stereo


Audio Output Mode: Stereo


Mounting Type: Ground Mount


Enclosure Material: Wood


Speaker Type: Subwoofer


Additional Features: Double Baffle - Countersunk Design


Antenna Location: Vented


Subwoofer Diameter: 8 Inches


Color: Black


Is Waterproof: FALSE


Warranty Type: Limited


Maximum Range: 10 Meters


Control Method: App


Speaker Size: 8 Inches


Woofer Diameter: 8 Inches


Specific Uses For Product: Adding powerful aftermarket bass to vehicles


MP3 player: No


Controller Type: Corded Electric


Frequency Response: 350 Hz


Number of Audio Channels: 2.0


Impedance: 1 Ohms


Connectivity Technology: Wired


Wireless Technology: No Wireless Communication Technology


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: Wired


Audio Driver Type: Dynamic Driver


Audio Driver Size: 8 Inches


Number Of Circuits: 1


Brand: Skar Audio


Model Number: SDR-2X8D4


Model Name: SDR-2X8D4


Built-In Media: Skar Audio SDR-2X8D4 Dual 8" Vented Loaded Subwoofer Enclosure


Warranty Description: 2 year limited warranty


Number of Items: 1


Series Number: 2


UPC: 810028810402


Global Trade Identification Number: 02


Manufacturer: Skar Audio


Age Range Description: Adult


Item Type Name: Vehicle Subwoofer System


Speaker Maximum Output Power: 1400 Watts


Unit Count: 1.0 Count


Item Dimensions D x W x H: 16.25"D x 25.75"W x 12"H


Item Weight: 53.3 Pounds


Compatible Devices: Home Theater


Compatible with Vehicle Type: Car


Power Source: Corded Electric


Frequently asked questions

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View our full returns policy here.

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Top Amazon Reviews

    • Heavy and Awesome looking and sounding for 2 8 inch subs.
Size: Dual 8" D4 Loaded Enclosure
It is very heavy unit and looks awesome. Only have used it one day will let you know how it holds up after a month or if I have any problems Kick loud and sounds great.
Reviewed in the United States on March 24, 2026 by Bingo Starr
    • Highly recommend
Size: Dual 8" D4 Loaded Enclosure
Love it! Placed it in the back of my sequoia and made it sound so much better. These 8’s really put out some power. Good quality at a good price
Reviewed in the United States on November 13, 2025 by Amazon Customer
    • Satisfied purchase
Size: Dual 8" D4 Loaded Enclosure
Review Image by kenny g.
Bought the pair of sdr8’s and paired them with the skar 800.1 amp. I am very pleased with the sound these put out. Some people think I got 12s in the back of my suv. They hit hard and low
Reviewed in the United States on December 12, 2025 by kenny g.
    • Who really needs Sundown audio, Lol.
Size: Dual 8" D4 Loaded Enclosure
I rewired these to a 2 ohm load altho my Skar amp is more than capable of being stable at 1 ohm. All I have to say is they hit harderthen expected, I'm pushing around 700rms no clipping just nice hard hitting bass. These aren't SA so I'm not beating on them straight out the box, but they sound very good already. All in all very pleased with the output so far and they weren't expensive so a great value for the money. ... show more
Reviewed in the United States on June 17, 2025 by Mikael
    • Awesome product! Only one but...
Size: Dual 8" D4 Loaded Enclosure
I got this 8" box to replace a to 10"s bandpass I got that died on me. This thing is unbelievable loud. So loud that I'm getting some deadening matts for my trunk, because it keeps ripping the clips off on my rear deck plastic cover. Pair this with a good amplifier and you won't regretted. I took one star off for one reason. They come prewired for 1 Ohm from factory which is awesome if your amplifier is stable at 1 Ohm. Mine isn't so I have to disassemble the speakers and wired them so my amplifier can take them. EASY JOB thought, they have a link on their support page that tells you exactly how to wire them to fit your configuration. Strongly recommend! ... show more
Reviewed in the United States on March 27, 2024 by Benjamin Centeno
    • Magnepan Match
Size: Dual 8" D4 Loaded Enclosure
Review Image by J. Reis
Point of Diminishing Returns. Magnepan speakers require accurate subwoofers. I found the perfect budgeted remedy. I required sub-bass reproduction in my deticated listening room (18ft×8ft×38ft. Placing this subwoofer just behind the listening position proved optimal (opposite of an acoustic null). Theil-Small values meant applicable sealed use in the near field. I plugged the port with a large t-shirt for good measure. Magnepan speakers possess highly reactive components, making subwoofer pairing difficult. This subwoofer has excellent speed and signal tracking capability- making it the perfect candidate for sound quality. The two physical subwoofers have low moving mass (<60g), so transient response is high - very high. All you need is propper power. Regarding amplification, a Crown XlS1000/1002 running in bridged mode will do. Simply re-wire the subs to a 2ohm configuration (limit distortion using pro amplifiers). Overall this subwoofer is exceptionally transient in the near-field, providing ample sub-bass reproduction down to 25hz. Plenty for music. Only criticism is that the drivers make mechanical noise just slightly below its resonant frequency (37hz) - you'll have to triple your inventment to rid yourself of this. For that reason, this complete package is an economical means to warrant interest from even hifi owners. I've heard powered subs five fold the cost and would still choose this! ... show more
Reviewed in the United States on October 21, 2021 by J. Reis
    • Skar Is the Best For Your Dollar
Size: Dual 8" D4 Loaded Enclosure
I replaced a 12" Skar Sub and box with these 8" subs in box last month because they fit in my S10 a little better. Using the same amp(Skar RP-800.1D, I can say it's just as loud. Skar Audio is the best for budget system builds. I run all Skar products in my ride. Besides the subs and amp, I also use a RP150.4AB to push the TX69 behind the seats, NPX56 and VX200ST in the front. Balanced out with their EQ and AMG 20ah battery. I hit 140db at my dash last week. *hint: if running these subs with the RP800.1D, set your gain at 26.4 volts. Too much gain will kill your investment. ... show more
Reviewed in the United States on September 3, 2024 by David Green
    • Blown speaker
Size: Dual 8" D4 Loaded Enclosure
One of the speakers have already blown. When it plays, there is distortion in the sound. Could you send me a replacements matching speaker instead of replacing the entire box
Reviewed in the United States on April 7, 2026 by Wendell Smith Jr

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